Home / 55,552.21-76,666.83-31,679.89

Finding the Fourth Proportional to 55,552.21, 76,666.83 and 31,679.89

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Solution

The fourth proportional to 55,552.21, 76,666.83 and 31,679.89 is: 43,720.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,552.21 : 76,666.83 = 31,679.89 : x
  2. Step 2: Convert to fraction form
    55,552.21/76,666.83 = 31,679.89/x
  3. Step 3: Cross multiply
    55,552.21x = 76,666.83 × 31,679.89
  4. Step 4: Simplify right side
    55,552.21x = 2,428,796,357.71
  5. Step 5: Solve for x
    x = 2,428,796,357.71/55,552.21
  6. Step 6: Final answer
    x = 43,720.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.